Legal claims defining the scope of protection, as filed with the USPTO.
1. An apparatus for transmitting broadcast signals, the apparatus comprising: an encoder to encode Data Pipe (DP) data according to a 16200 bits codeword and an 11/15 code rate based on addresses in a parity check matrix, wherein the encoded DP data comprises information bits and parity bits; a frame builder to build at least one signal frame by mapping the encoded DP data; modulator to modulate data in the built signal frame by an Orthogonal Frequency Division Multiplexing (OFDM) method; a preamble inserter to insert a preamble at a beginning of each signal frame in a time domain; and a transmitter to transmit the broadcast signals having the preamble and the modulated data, wherein the DP data is encoded by: adding the information bits in groups of 360 information bits corresponding to each row of the parity check matrix to the parity bits of which addresses are based on values of entries in each row of the parity check matrix, where the parity check matrix is: 49 719 784 794 968 2382 2685 2873 2974 2995 3540 4179 272 281 374 1279 2034 2067 2112 3429 3613 3815 3838 4216 206 714 820 1800 1925 2147 2168 2769 2806 3253 3415 4311 62 159 166 605 1496 1711 2652 3016 3347 3517 3654 4113 363 733 1118 2062 2613 2736 3143 3427 3664 4100 4157 4314 57 142 436 983 1364 2105 2113 3074 3639 3835 4164 4242 870 921 950 1212 1861 2128 2707 2993 3730 3968 3983 4227 185 2684 3263 2035 2123 2913 883 2221 3521 1344 1773 4132 438 3178 3650 543 756 1639 1057 2337 2898 171 3298 3929 1626 2960 3503 484 3050 3323 2283 2336 4189 2732 4132 4318 225 2335 3497 600 2246 2658 1240 2790 3020 301 1097 3539 1222 1267 2594 1364 2004 3603 1142 1185 2147 564 1505 2086 697 991 2908 1467 2073 3462 2574 2818 3637 748 2577 2772 1151 1419 4129 164 1238 3401 ; and updating each k th parity bit by summing with each (k−1) th parity bit in the parity bits, where k is an integer greater than zero.
2. The apparatus of claim 1 , wherein the preamble includes emergency alert information for an emergency alert.
3. The apparatus of claim 1 , wherein the addresses of the parity bits are represented as q(i, j, 1), wherein q(i, j, 1)=q(i ,j , 0)+Q_1dpc*1(mod 4320), and wherein q (i ,j, 0) is a value of a j-th entry in an i-th row of the parity check matrix, Q_1dpc is 12, and 1 is an index of each information bit in the group of 360 information bits.
4. An apparatus for receiving broadcast signals, the apparatus comprising: a receiver to receive broadcast signals having a preamble and modulated data in signal frames; a de-modulator to de-modulate the modulated data by an Orthogonal Frequency Division Multiplexing (OFDM) method; a parser to parse at least one signal frame by de-mapping Data Pipe (DP) data; and a decoder to decode the de-mapped DP data according to a 16200 bits codeword and an 11/15 code rate based on addresses in a parity check matrix, wherein the de-mapped DP data includes parity bits generated by: adding information bits in groups of 360 information bits corresponding to each row of the parity check matrix to the parity bits of which addresses are based on values of entries in each row of the parity check matrix, where the parity check matrix is: 49 719 784 794 968 2382 2685 2873 2974 2995 3540 4179 272 281 374 1279 2034 2067 2112 3429 3613 3815 3838 4216 206 714 820 1800 1925 2147 2168 2769 2806 3253 3415 4311 62 159 166 605 1496 1711 2652 3016 3347 3517 3654 4113 363 733 1118 2062 2613 2736 3143 3427 3664 4100 4157 4314 57 142 436 983 1364 2105 2113 3074 3639 3835 4164 4242 870 921 950 1212 1861 2128 2707 2993 3730 3968 3983 4227 185 2684 3263 2035 2123 2913 883 2221 3521 1344 1773 4132 438 3178 3650 543 756 1639 1057 2337 2898 171 3298 3929 1626 2960 3503 484 3050 3323 2283 2336 4189 2732 4132 4318 225 2335 3497 600 2246 2658 1240 2790 3020 301 1097 3539 1222 1267 2594 1364 2004 3603 1142 1185 2147 564 1505 2086 697 991 2908 1467 2073 3462 2574 2818 3637 748 2577 2772 1151 1419 4129 164 1238 3401 ; and updating each k th parity bit by summing with each (k−1) th parity bit in the parity bits, where k is an integer greater than zero.
5. The apparatus of claim 4 , wherein the preamble includes emergency alert information for an emergency alert.
6. The apparatus of claim 4 , wherein the addresses of the parity bits are represented as q(i, j, 1), wherein q(i, j, 1)=q(i, j, 0)+Q_1dpc*1 (mod 4320), and wherein q (i, j, 0) is a value of a j-th entry in an i-th row of the parity check matrix, Q_1dpc is 12, and 1 is an index of each information bit in the group of 360 information bits.
Unknown
January 16, 2018
Browse 5M+ US patents with plain-English claim translations and AI-generated analysis.